Summary: I've been using the DG-200 for a week now-just trying it out to see how it works in a car, walking and inside buildings. It's amazingly good! I purchased the unit to supplement a new high-end point and shoot camera that has extremely poor GPS performance compared to a cell phone. I initially tied several GPS logging apps on a Galaxy S4-with unacceptable results.
Great device, great price, no stinking monthly fees.
Chandni S. Dani, Amazon
28 June 2014
Summary: NIIIIIFTY! Great little device to keep monitor use of vehicle. We use this for a commercial box truck to monitor truck movement. Great way to keep log of truck. This is not a REAL-TIME GPS TRACKER. This is a data logger, it logs data - simple as that. Leave the unit in a vehicle, gather data, download to PC watch the movement on Google earth. NO FEES of any kind with this gadget.
Summary: This is very accurate for something so tiny. I love it. The best part is GlobalSat releases updates for it while other passive GPS units do not. This also cost a mere fraction of that of other gps devices. The only downside is the short battery life. Mine only lasted 2 days on a single charge but I connected it to an external battery and now it lasts for weeks. If you are looking for a good passive GPS logger then this is the one for you.